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公开(公告)号：US08058621B2
公开(公告)日：2011-11-15
申请号：US12605391
申请日：2009-10-26
申请人： Vamshi Krishna Reddy Kommareddy , Paul Joseph Martin , Saratchandra Shanmukh , Paul Burchell Glaser , Susanne Madeline Lee , Ramakrishna Rao , Manoharan Venugopal
发明人： Vamshi Krishna Reddy Kommareddy , Paul Joseph Martin , Saratchandra Shanmukh , Paul Burchell Glaser , Susanne Madeline Lee , Ramakrishna Rao , Manoharan Venugopal
IPC分类号： G01N33/22
CPC分类号： G01N23/207 , G01N27/127 , G01N33/22 , G01N2223/637
摘要： A system to detect a plurality of elements is proposed. The system includes one or more X-ray sources for transmitting X-rays towards a sample and also includes plurality of photon detectors. An array of crystals are arranged in a curvature with appropriate geometry for receiving a plurality of photon energies emitted from the sample and focusing the photon energy on the plurality of detectors. The plurality of photon detectors are spatially arranged at Bragg angles corresponding to signature photon energies to detect the plurality of elements simultaneously.
摘要翻译： 提出了一种用于检测多个元件的系统。 该系统包括用于向样品发射X射线的一个或多个X射线源，并且还包括多个光子检测器。 晶体阵列被布置成具有适当几何形状的曲率，用于接收从样品发射的多个光子能量并将光子能量聚焦在多个检测器上。 多个光子检测器在空间上布置成与签名光子能量对应的布拉格角，以同时检测多个元素。
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公开(公告)号：US20110095190A1
公开(公告)日：2011-04-28
申请号：US12605391
申请日：2009-10-26
申请人： Vamshi Krishna Reddy Kommareddy , Paul Joseph Martin , Saratchandra Shanmukh , Paul Burchell Glaser , Susanne Madeline Lee , Ramakrishna Rao , Manoharan Venugopal
发明人： Vamshi Krishna Reddy Kommareddy , Paul Joseph Martin , Saratchandra Shanmukh , Paul Burchell Glaser , Susanne Madeline Lee , Ramakrishna Rao , Manoharan Venugopal
CPC分类号： G01N23/207 , G01N27/127 , G01N33/22 , G01N2223/637
摘要： A system to detect a plurality of elements is proposed. The system includes one or more X-ray sources for transmitting X-rays towards a sample and also includes plurality of photon detectors. An array of crystals are arranged in a curvature with appropriate geometry for receiving a plurality of photon energies emitted from the sample and focusing the photon energy on the plurality of detectors. The plurality of photon detectors are spatially arranged at Bragg angles corresponding to signature photon energies to detect the plurality of elements simultaneously.
摘要翻译： 提出了一种用于检测多个元件的系统。 该系统包括用于向样品发射X射线的一个或多个X射线源，并且还包括多个光子检测器。 晶体阵列被布置成具有适当几何形状的曲率，用于接收从样品发射的多个光子能量并将光子能量聚焦在多个检测器上。 多个光子检测器在空间上布置成与签名光子能量对应的布拉格角，以同时检测多个元素。
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公开(公告)号：US08184767B2
公开(公告)日：2012-05-22
申请号：US12331549
申请日：2008-12-10
申请人： Debasish Mishra , William Robert Ross , Thomas James Batzinger , Manoharan Venugopal , Forrest Frank Hopkins , Nityanand Gopalika , Vamshi Krishna Reddy Kommareddy , Rajashekar Venkatachalam , Prasad Thapa
发明人： Debasish Mishra , William Robert Ross , Thomas James Batzinger , Manoharan Venugopal , Forrest Frank Hopkins , Nityanand Gopalika , Vamshi Krishna Reddy Kommareddy , Rajashekar Venkatachalam , Prasad Thapa
IPC分类号： A61B6/00
CPC分类号： H04N5/32 , A61B6/5282 , G01N23/046 , G01N2223/316
摘要： An imaging technique is provided for acquiring scatter free images of an object. The technique includes acquiring a plurality of projection images of the object using a source and a detector oriented at a plurality of projection angles relative to the object, and generating a plurality of scatter free projection images by correcting the plurality of projection images based on respective ones of a plurality of stored scatter images. The scatter images are generated and stored for each of the projection angles by positioning a scatter rejection plate between the object and the detector. The technique further includes reconstructing a three-dimensional image of the object based on the scatter free projection images.
摘要翻译： 提供了一种用于获取物体的无分散图像的成像技术。 该技术包括使用源和相对于物体以多个投影角定向的检测器获取对象的多个投影图像，并且通过基于相应的对象来校正多个投影图像来生成多个无散射投影图像 的多个存储的散射图像。 通过在物体和检测器之间放置散射抑制板，为每个投影角度生成和存储散射图像。 该技术还包括基于无分散投影图像来重建对象的三维图像。
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公开(公告)号：US20100140485A1
公开(公告)日：2010-06-10
申请号：US12331549
申请日：2008-12-10
申请人： Debasish Mishra , William Robert Ross , Thomas James Batzinger , Manoharan Venugopal , Forrest Frank Hopkins , Nityanand Gopalika , Vamshi Krishna Reddy Kommareddy , Rajashekar Venkatachalam , Prasad Thapa
发明人： Debasish Mishra , William Robert Ross , Thomas James Batzinger , Manoharan Venugopal , Forrest Frank Hopkins , Nityanand Gopalika , Vamshi Krishna Reddy Kommareddy , Rajashekar Venkatachalam , Prasad Thapa
IPC分类号： G21K1/02
CPC分类号： H04N5/32 , A61B6/5282 , G01N23/046 , G01N2223/316
摘要： An imaging technique is provided for acquiring scatter free images of an object. The technique includes acquiring a plurality of projection images of the object using a source and a detector oriented at a plurality of projection angles relative to the object, and generating a plurality of scatter free projection images by correcting the plurality of projection images based on respective ones of a plurality of stored scatter images. The scatter images are generated and stored for each of the projection angles by positioning a scatter rejection plate between the object and the detector. The technique further includes reconstructing a three-dimensional image of the object based on the scatter free projection images.
摘要翻译： 提供了一种用于获取物体的无分散图像的成像技术。 该技术包括使用源和相对于物体以多个投影角定向的检测器获取对象的多个投影图像，并且通过基于相应的对象来校正多个投影图像来生成多个无散射投影图像 的多个存储的散射图像。 通过在物体和检测器之间放置散射抑制板，为每个投影角度生成和存储散射图像。 该技术还包括基于无分散投影图像来重建对象的三维图像。
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5.发明授权Method and system for identifying defects in a radiographic image of a scanned object 有权用于识别扫描对象的放射照相图像中的缺陷的方法和系统公开(公告)号：US08204291B2
公开(公告)日：2012-06-19
申请号：US11872190
申请日：2007-10-15
IPC分类号： G06K9/03
CPC分类号： G06K9/00 , G06T7/0004
摘要： A method for processing a radiographic image of a scanned object is provided. The method comprises acquiring radiographic image data corresponding to a scanned object and identifying one or more regions of interest in the radiographic image data corresponding to the scanned object. The method further comprises performing an image-contrast comparison of the radiographic image data corresponding to the scanned object and one or more reference radiographic images, to identify one or more defects in the radiographic image data corresponding to the scanned object.
摘要翻译： 提供了一种用于处理扫描对象的放射线图像的方法。 该方法包括获取与扫描对象相对应的放射线图像数据，并识别与扫描对象相对应的放射照相图像数据中的一个或多个感兴趣区域。 该方法还包括执行与扫描对象相对应的放射线照相图像数据和一个或多个参考放射线照相图像的图像对比度比较，以识别与扫描对象相对应的放射照相图像数据中的一个或多个缺陷。
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公开(公告)号：US07519143B2
公开(公告)日：2009-04-14
申请号：US11477756
申请日：2006-06-29
IPC分类号： G01N23/00
CPC分类号： A61B6/00 , A61B6/5282 , G06T5/002 , G06T5/003 , G06T5/20 , G06T11/005 , G06T11/006 , G06T2207/10116 , G06T2207/30004 , G06T2211/424 , Y10S378/901
摘要： A Digital Radiograph (DR) acquisition system for generating a scatter-corrected X-ray image is provided. The DR acquisition system includes a digital detector configured to produce a two-dimensional (2D) X-ray image of an object of interest. The digital detector is configured to detect X-rays emitted from an X-ray source and transmit the X-rays through the object of interest and generate the 2D X-ray image in response to the detected X-rays. The DR acquisition system further includes an image processor coupled to the digital detector, and a display unit. The image processor is configured to generate projection image data from the 2D X-ray image and iteratively reconstruct the 2D X-ray image to generate a scatter-corrected X-ray image based on the generated projection image data. The display unit configured to display the scatter-corrected X-ray image in conjunction with the 2D X-ray image.
摘要翻译： 提供了一种用于产生散射校正的X射线图像的数字射线照相（DR）采集系统。 DR采集系统包括被配置为产生感兴趣对象的二维（2D）X射线图像的数字检测器。 数字检测器被配置为检测从X射线源发射的X射线，并且通过感兴趣的物体传输X射线，并响应于检测到的X射线产生2D X射线图像。 DR采集系统还包括耦合到数字检测器的图像处理器和显示单元。 图像处理器被配置为从2D X射线图像生成投影图像数据，并且基于所生成的投影图像数据迭代地重构2D X射线图像以生成散射校正的X射线图像。 所述显示单元被配置为结合2D X射线图像显示散射校正的X射线图像。
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公开(公告)号：US20090066939A1
公开(公告)日：2009-03-12
申请号：US11851422
申请日：2007-09-07
申请人： Rajashekar Venkatachalam , Mahesh Kumar Asati , Prakash Mandayam Comare , Megha Navalgund , Xiaoming Liu , Robert August Kaucic , Joseph Manuel Portaz , Manoharan Venugopal
发明人： Rajashekar Venkatachalam , Mahesh Kumar Asati , Prakash Mandayam Comare , Megha Navalgund , Xiaoming Liu , Robert August Kaucic , Joseph Manuel Portaz , Manoharan Venugopal
CPC分类号： G01N23/04 , G01N2223/63
摘要： A method for automatically identifying defects in turbine engine blades is provided. The method comprises acquiring one or more radiographic images corresponding to one or more turbine engine blades and identifying one or more regions of interest from the one or more radiographic images. The method then comprises extracting one or more geometric features based on the one or more regions of interest and analyzing the one or more geometric features to identify one or more defects in the turbine engine blades.
摘要翻译： 提供一种用于自动识别涡轮发动机叶片中的缺陷的方法。 所述方法包括获取对应于一个或多个涡轮发动机叶片的一个或多个放射照相图像，并从所述一个或多个放射照相图像识别感兴趣的一个或多个区域。 该方法然后包括基于所述一个或多个感兴趣区域提取一个或多个几何特征，并且分析所述一个或多个几何特征以识别所述涡轮发动机叶片中的一个或多个缺陷。
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公开(公告)号：US20060058974A1
公开(公告)日：2006-03-16
申请号：US11108498
申请日：2005-04-18
申请人： Brian Lasiuk , Thomas Batzinger , Manoharan Venugopal , Elizabeth Dixon , Michael Hopple , Nityanand Gopalika , Sivaramanivas Ramaswamy , Debasish Mishra , Rajashekar Venkatachalam , Vamshi Reddy Kommareddy
发明人： Brian Lasiuk , Thomas Batzinger , Manoharan Venugopal , Elizabeth Dixon , Michael Hopple , Nityanand Gopalika , Sivaramanivas Ramaswamy , Debasish Mishra , Rajashekar Venkatachalam , Vamshi Reddy Kommareddy
CPC分类号： G01B15/025
摘要： A digital radiography imaging system for acquiring digital images of an object, and a method for transforming digital images into an absolute thickness map characterizing the object under inspection. The system includes a radiation source for directing radiation through a desired region of the object, and a radiation detector having a plurality of sensing elements for detecting radiation passing through the object. Numerical data generated from each sensing element is calibrated, for example by correcting for variations in radiation paths between the source and detector, by correcting for variations in the spatial frequency response (MTF) of the detector, by correcting for variations in the geometric profile of the object under inspection, and by correcting for material contained in and/or around the object. The calibrated data is processed in order to generate and display an absolute thickness map of the object. The calibration procedures are adapted for extracting a thickness map from both isotope sources and X-ray tube sources.
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公开(公告)号：US08208711B2
公开(公告)日：2012-06-26
申请号：US11851422
申请日：2007-09-07
申请人： Rajashekar Venkatachalam , Mahesh Kumar Asati , Prakash Mandayam Comare , Megha Navalgund , Xiaoming Liu , Robert August Kaucic , Joseph Manuel Portaz , Manoharan Venugopal
发明人： Rajashekar Venkatachalam , Mahesh Kumar Asati , Prakash Mandayam Comare , Megha Navalgund , Xiaoming Liu , Robert August Kaucic , Joseph Manuel Portaz , Manoharan Venugopal
CPC分类号： G01N23/04 , G01N2223/63
摘要： A method for automatically identifying defects in turbine engine blades is provided. The method comprises acquiring one or more radiographic images corresponding to one or more turbine engine blades and identifying one or more regions of interest from the one or more radiographic images. The method then comprises extracting one or more geometric features based on the one or more regions of interest and analyzing the one or more geometric features to identify one or more defects in the turbine engine blades.
摘要翻译： 提供一种用于自动识别涡轮发动机叶片中的缺陷的方法。 所述方法包括获取对应于一个或多个涡轮发动机叶片的一个或多个放射照相图像，并从所述一个或多个放射照相图像识别感兴趣的一个或多个区域。 该方法然后包括基于所述一个或多个感兴趣区域提取一个或多个几何特征，并且分析所述一个或多个几何特征以识别所述涡轮发动机叶片中的一个或多个缺陷。
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公开(公告)号：US20090086911A1
公开(公告)日：2009-04-02
申请号：US11862363
申请日：2007-09-27
IPC分类号： H05G1/46
CPC分类号： H05G1/30
摘要： A system for radiographic inspection of an object is provided. The system comprises a radiation source configured to generate radiation, a display unit for generating a graphical user interface (GUI) including multiple fields. A user provides input data via the fields in the GUI. A processor configured to compute a plurality of exposure parameters based on the input data and a control system is configured to initialize the radiation source with the exposure parameters.
摘要翻译： 提供了一种用于物体的射线检查的系统。 该系统包括被配置为产生辐射的辐射源，用于生成包括多个场的图形用户界面（GUI）的显示单元。 用户通过GUI中的字段提供输入数据。 配置成基于输入数据计算多个曝光参数的处理器，并且控制系统被配置为利用曝光参数来初始化辐射源。
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